Millennials Leaving the Big City

"Millennials and young Gen X residents may be leaving New York City behind," according to an article by Ryan Deffenbaugh.
That speculation is inspired by Census data shared in a Wall Street Journal article [paywall] by Janet Adamy and Paul Overberg.
"The Big Apple lost almost 38,000 people ages 25 to 39 last year, The Wall Street Journal reported, a decline roughly twice the size it experienced in each of the previous three years."
New York City wasn’t alone. "Chicago, Houston, San Francisco, Las Vegas, Washington, D.C., and Portland, Ore. each lost a significant number of residents in the same age group," explains Deffenbaugh of the data found in the Journal article.
"The report follows months of headlines chronicling New York City’s shrinking population. Census data released in April found that the five boroughs lost a net of 40,000 residents between July 2017 and July 2018. The lost came despite New York City's adding jobs at a rate faster than the U.S. average."